51871717175 has 12 divisors (see below), whose sum is σ = 64323761736. Its totient is φ = 41495546400.

The previous prime is 51871717147. The next prime is 51871717207. The reversal of 51871717175 is 57171717815.

It is not a de Polignac number, because 51871717175 - 2¹⁰ = 51871716151 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1030340 + ... + 1079510.

It is an arithmetic number, because the mean of its divisors is an integer number (5360313478).

Almost surely, 2^51871717175 is an apocalyptic number.

51871717175 is a deficient number, since it is larger than the sum of its proper divisors (12452044561).

51871717175 is a wasteful number, since it uses less digits than its factorization.

51871717175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91378 (or 91373 counting only the distinct ones).

The product of its digits is 480200, while the sum is 50.

The spelling of 51871717175 in words is "fifty-one billion, eight hundred seventy-one million, seven hundred seventeen thousand, one hundred seventy-five".